Used to test the sensitivity of the respirator wearer to a saccharin solution. It is used with the 3M™ Qualitative Fit Test Apparatus FT-10 and 3M™ Training and Fit Testing Case FT-20. Test kits and accessories designed to help your organization meet OSHA fit testing requirements for respirators. The products can be used to check face-to-respirator seal on any particulate respirator or gas/vapor respirator with a particulate filter.